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Finding the Fourth Proportional to 40,404.80, 60,558.60 and 20,673.20

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Solution

The fourth proportional to 40,404.80, 60,558.60 and 20,673.20 is: 30,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,404.80 : 60,558.60 = 20,673.20 : x
  2. Step 2: Convert to fraction form
    40,404.80/60,558.60 = 20,673.20/x
  3. Step 3: Cross multiply
    40,404.80x = 60,558.60 × 20,673.20
  4. Step 4: Simplify right side
    40,404.80x = 1,251,940,049.52
  5. Step 5: Solve for x
    x = 1,251,940,049.52/40,404.80
  6. Step 6: Final answer
    x = 30,984.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.